Process of fixing the tangs of table-cutlery, tools, and the like in their handles.



A. & E. MULLER. mocnss or FIXING THE TANGS 01-" TABLE GUTLERY, TOOLS,AND THE LIKE IN THEIR HANDLES. APPLICATION-FILED SEPT. 26, 1911.1,030,321 Patented June 25, 1912.

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ARTHUR MnLLEa AND nnns'r Mouse, or BERLIN, GERMANY.

PROCESS OF FIXING TI-IE TANGS OF TABLE-CUTLERY, TOOLS, AND THE LIKE INTHEIR HANDLES.

Specification of Letters Patent.

Patented June 25, 1912.

Application filed September 26, 1911. Serial No. 651,365.

- ERNST Mt'mnnn, subjects of the German Emperor, and both residing atBerlin, Germany, have invented a certain new and useful Improved Processof Fixing the Tang's of Table-Cutlery, Tools, and the Like in TheirI-Iandles, of which the following is a specification.

The subj cot-matter of this invention is an improved process of fixingthe tangs of table cutlery, tools and the like, in their handles. I

The method hitherto employed of fixing the tangs of such articles intheir handles by cementing, soldering, or casting with lead has variousdrawbacks. For example, it is a difiicult matter to fix the tang inposition with accuracy, and after a period of use the tang becomes moreor less loose in its handle.

A primary object of our invention is to obviate these defects.

To this end, the process according to our invention substantiallyconsists in forcing a liner into a cavity in the handle containing thetang.

The liner, which may be composed of any suitable material, 6. 9. softmetal, asbestos or the like, may be placed in any suitable manner intothe space between the tang and the wall of the cavity. e prefer to forcethe liner into the cavity so that it enters into notches provided bothin the tang and in the walls of the cavity. The material of the linerthen completely fills the space between the tang and the wall of thecavity and is forced into the notches thereby forming a key, so that anextremely firm connection is obtained between these two parts, whichrenders it impossible for the tang to come out of its handle when oncefixed therein.

In order that our invention may be clearly understood we will nowdescribe the same with reference to the accompanying drawing, whereinFigure 1 is a sectional view of the tang of a knife, the handle and theliner before the liner has been forced into its final position, and Fig.2 is a similar view of the same parts after the liner has been forcedinto its final position.

In the drawing a designates the tang of the knife, .7) the handle, 6 thesoft metal liner and cl the blade'of the knife.

As shown in Fig. 1, the soft metal liner 0 which is to be located in thecavity of the placed upon handle between the tang a and the walls of thesaid cavity, is longer than the notched portion of the said cavity, andits dimensions are such that when it has been forced into the handle itwill completely and tightly fill the whole of the cavity in the handleas shown in Fig. 2.

The bolster a, which is thicker than the tang a, acts as a plunger inthe forcing oper ation.

The tang and the walls of the cavity in the handle are notched theentire length of the portion of the cavity which it is intended that thesoft metal liner 0 shall fill in its final position.

The metal liner 0 is preferably a slit tube of soft metal about 1millimeter thick.

In carrying out the fixing operation, the

' liner 0 may be first inserted into the cavity in the handle 6, so thatits inner end abuts against the inner end of the cavity, and then thetang a is introduced into the liner with its bolster a resting upon theouter end of the liner. The liner may however, be the middle or notchedpart of the tang, and be introduced together with the latter into thecavity in the handle. The smooth lower part of the tang is designed tofit exactly in the contracted portion of the handle as shown in thedrawings, so that when the tang is forced into the handle the metal ofthe liner 0 cannot pass beyond the shoulder 7). In both instances, theliner is pressed into the notches in the tang and in the handle by thebolster a being introduced a sufficient distance into the outer end ofthe bore in the handle so that the end of the tang is guided exactly inthe inner contracted portion of the handle and .prevents the linerpenetrating bet-ween the end of the tang and the handle.

We claim 1. The 'hereindescribed process of fixing the tangs oftable-cutlery, tools and the like in their handles, which consists infirst assembling the handle, the shouldered tang, and a liner thereon ina cavity in the handle, and then applying to the liner force of such anature that the liner will be upset and expanded into binding contactwith the tang and with the wall of the cavity, thereby forming a key.

2. The hereindescribed process of fixing the tangs of table-cutlery,tools and the like in their handles, which consists in first assemblingthe handle, the shouldered tang and a liner thereon in a cavity having ashoulder, and then applying to the liner force of such a nature that theliner will be upset between the shouldered tang and the shoulder in thecavity and thus expanded into binding contact with the tang and withithe wall of the cavity, thereby forming a rey.

3. The hereindescribed process of fixing the tangs of table cutlery,tools and the like in their handles, which consists in first assemblingthe handle, the shouldered tang, partly notched, and a liner thereon ina cavity, having a shoulder and a notched wall, in the handle and thenapplying to the liner force of such a nature that the liner will beupset between the shoulder of the tang and the shoulder in the cavityand thus expanded into binding contact with the notches in the tang andin the cavity, thereby forming a key.

4. The hereindescribed process of fixing the tangs of table cutlery,tools and the like in their handles, which consists in firstassemblingthe handle, the shouldered tang, having a reduced notchedportion, and a soft metal liner thereon in a cavity having a shoulder inthe handle, and then applying to the liner force of such a nature thatthe liner will be upset between the shoulder. of the tang and theshoulder in the cavity and thus expanded into binding contact with thenotches in the tang and with the wall of the cavity, thereby forming akey.

5. The hereindescribed process of fixing the tangs of table cutlery,tools and the like in their handles, which consists in first assemblingthe handle, the shouldered tang, having a reduced notched portion, and asoft metal liner thereon in a cavity, having a shoulder and a notchedwall, in the handle, and then applying to the liner force of such anature that the liner will be upset between the shoulder of the tang andthe shoulder in the cavity and thus expanded into binding contact withthe notches in the tang and in the Wall of the cavity, thereby forming akey.

In testimony whereof, We afiix our signar t-ures in the presence of twowitnesses.

ARTHUR ERNST MULLER.

v Witnesses:

WOLDEMAR HAUPT, HENRY HASPER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

